Pool and Spa Filter Air Bleed Socket Kit Replacement for Pentair Filter Air Bleed Socket Kit 59016200 (2 Pack)

This internal air relief component is a small but critical safety and performance part for high-capacity vertical grid D.E. (Diatomaceous Earth) and large-scale cartridge filtration systems. Positioned at the highest point of the internal manifold, it ensures that trapped air is continuously bled from the tank while maintaining a total seal against debris.